Question # 1

Which amount of water has greater density at room temperature.

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1 ton

100 g

1 kg

All have same density

A girl walks 3 km towards west and 4 km towards south. What is the magnitude of her total disance and displacement respectively.

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7 km, 5 km

7 km, 7 km

1 km, 7 km

7 km, 1 km

If a car doubles its speed, its kinetic energy will be

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Increased to four times

The same

Doubled

Increased to the three times

When a spring in compressed, what form of energy does it possess.

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Heat

Internal

Potential

Kinetic

Which of the following can increase the sensitivity of liquid in glass thermometer.

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Changes colour on temperture

Use a longer capillary tube

Use a bigger bulb which contains more amount of liquids

Using long specific its

Which of the following physical properties is used in a mercury thermometer.

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Colour

Pressure

Volume

Electrical resistance

Which one is a better choice for a liquid in glass thermometer is that.

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Wets glass

Is colourless

Is a bad conductor

Expand linearly

Atmospheric pressur eis commonly measured using a.

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Hygrometer

Monometer

Barometer

Thermometer

A common method used to meagnetics a materials is.

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Hitting

Heating

Stroking

Placing inside a solenoid having AC current

A graph of an organized data is an example

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Collecting data

Analyzing data

Asking question

Forming a hypothesis

Thrust force is a consequence of which law of motion.

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First

Second

Third

Fourth

Time period is reciprocal of:

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Frequency

Cycle

Wavelength

Amplitude

A capacitor stores 0.24 coulombs at 10 volts. It capacitance is:

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0.024F

0.12F

0.6F

0.8F

BASIC is a:

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High level language

Low level language

Assembly language

Machine Language

Optical fibres works on the principle of:

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Reflection

Refraction

Total internal reflection

Diffraction

If the distance is nspring is 'x' of mass 'm' attached with a spring then restoring force is:

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F =ma

F =kx

F = mx

F= m/a

The index of refraction depends on:

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The focal length

The speed of light

the image distance

The object distance

Which of the following quantities is not change during refraction of light?

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Its direction

Its speed

its frequency

Its wavelength

According to Fleming's left hand rule the direction of magnetic field is indicated by:

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Thumb

Forefinger

Middle finger

Right hand rule

Radiation was found in:

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1896

1895

1897

1898

The direction of electric field lines due to positive charge is:

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A way from the charge

Towards the charge

Both a and b

None of these

The time period of frequency and time period is equal to:

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v

1

0

λ

Which one of the followign Muslim mathmatision determined the earths circumference.

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Al Beruni

Ibn Sina

Al Khawrizmi

None of these

Environmental crisis are also known as

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Population crisis

Entropy crisis

War crisis

Mass crisis

The components of a vector which are perpendicular to each other are called

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Horizontal components

Vertical components

Rectangular components

All of these

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

The blue colour of sky is due to

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diffraction

Reflection

Polarization

Scattering

Huygen's proposed, light energy travels in space from source in

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1578

1678

1778

1868

Height of projectile is maximum at an angle of.

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45^o

60^o

30^o

90^o

Interplaner distance can be determined by

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Newton's rings

Bragg's law

Diffraction pattern

Interferometer

If a vector of magnitude 10 N along y-axis then its component along x-axis is

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0 N

5 N

8.66 N

10 N

A man of mass 5 kg is falling freely, the fore acting on it will be

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5 N

9.8 N

19.6 N

49 N

If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be.

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600 Ohm

550 Ohm

450 Ohm

400 Ohm

Conductors have conductivities of order:

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10³(Ωm)-1

10⁷(Ωm)^-1

10⁷Ωm^-1

10^-6Ω

The electromagnetic spectrum contains

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Radio waves

X-rays

Microwaves

All of these

The potential difference across the depletion region of germanium is.

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0.3 V

0.5 V

0.7 V

0.8 V

Natural rubber is an example of:

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Crystalline solids

Amorphous solids

Polymeric solids

None of above

In Helium Neon laser, the discharge tube is filled with

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80% He, 20% Neon

85% He, 15% Neon

83% He, 17% Neon

90% He, 10% Neon

Total flux through a closed surface depends on.

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Shape of surface

Medium only

Charge enclosed only

Charge and Medium

In case of capacitor, the unit of reactance is

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Farad

Ohm

Newton

All of these

A battery move a charge of 40 C around a circuit at constant rate in 20 Sec. The current will be.

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2 A

0.5 A

80 A

800 A

The e/m of a neutron is

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Less than electron

The same as electron

Zero

Greater than election

Which one of the following is polymeric solids

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Glass

Nylon

Copper

Zinc